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Buildings utilizing concrete foundations, sidewalks and outdoor patios are not uncommon. However, these are created by using standard Portland cement, composed of sand, gravel and water, weighing over 300 pounds and unsuitable for interior uses.
But, relatively new, light mixes of cement have been designed for interior applications to provide a wide variety of interior applications and custom finishes. Unlike stone, travertine, marble or granite, concrete can be custom stained during manufacturing to produce any color desired.
Multiple layers of color glazes or waxes can be applied in several applications to produce aged surfaces, similar to faux finishing techniques. The effect of sandstone or limestone can be achieved by leaving the natural air holes after the initial pour, creating a more organic appearance. The finishing process can also turn pitted surfaces into matte or smooth-as-glass finishes by filling, sanding and sealing.
Concrete offers great flexibility including the ability to add materials such as glass, marble chips, stones or other insets such as copper or other unusual imprints to create highly individualized and unique surfaces. A designer's dream. :)
Several precautions are necessary when using concrete for work-surfaces.
- Concrete surfaces need to be reinforced with steel mesh or steel rebar.
- A pre-manufactured surface is often more durable and finishes more consistent than those fabricated on-site, since finishing conditions can be better controlled in the workshop.
- Spills should be wiped up immediately to prevent staining and sealers must be re-applied on a regular basis of 3 - 4 months to prevent staining.
- Non-abrasive cleansers should never be used since they can also damage the surface.
- Concrete does not respond well to the localized heat, therefore, hot pads are recommended.
Specialty concrete applications are numerous. Work-surfaces, hearths, tables, benches, planters, and wall tiles are all possibilities. When damage occurs concrete surfaces can be re-sanded, filled and sealed to restore the finish.
Each job is unique. Formulas and finishing processes vary from job to job and dictate the final product, making it necessary to utilize the services of experienced fabricators.
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